I will come out and post a few of my thoughts regarding the SU-85.
As stated before, without the SU-85 the Allies do not have reliable anti tank weapons. You can only use a ZiS for so long until Axis armor rolls you. The same is true with PaK. One does not simply rely on ATGs for their main anti armor purposes.
With that said, there are ways to HARD counter SU-85s. I personally rely on two PGren squads with shreks as my primary ground anti SU-85 force - and given my play style involving the jaeger infantry doctrine with an infantry heavy force I usually can use the charge ability to chase down / and shrek SU-85s by baiting them into engaging my main armored force.
What occasionally stresses me out are the lucky half squad wipes a pair of SU-85s might score on occasion. The situation then turns into a casualty heavy bloodbath (because I press with my armor) in which the outcome determines the winner of the game, and very frequently it will be in the SU-85s favor - unfortunately (unless I am the one commanding the SU-85s of course).
Sometimes I really do feel when playing against the SU-85 that they're overpowered. But I don't think it's because of their damage or armor. It's because of (guess who said it) how fast they turn while being flanked, even when they are engine damaged via fast or other methods.
So assuming close ranged combat, a fausted SU-85 will turn fast enough to defeat an AT naded PzIV / Panther - and I don't think this should entirely be the case if your tank that's engaging the SU was fresh when it moved in for the flank. (this is also assuming you don't have vet I on your panzers yet... in which case you have no excuse for not being able to flank and finish a SU-85, even if you're AT naded).
Again, if you use strafe to render enemy conscripts / guards useless this issue doesn't exist because no one is there to AT nade you or button you - but I'm making these conclusions excluding broken mechanics of the game.
![Honor icon](/images/replay/honor_icon.png)